Why are K 13, Q 12, J and J 1 1 in poker?

Because usually.

The size of the card is 23456789 10 J Q K A.

But there is no 1, and A is the first one in ABCD. Just replace 1.

While JQK is greater than 10 in turn. So111213 is right.

Some gameplay JQK is half a point.

Spring, summer, autumn and winter. It says.